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Mainframe Tester Jobs (NOW HIRING)

System One

Mainframe Architect

Pittsburgh, PA · On-site

Testing strategies * Deployment roadmaps * Communicate architecture, schedules, and implementation plans * Coordinate across cross-functional teams Must-Have Technical Skills * Mainframe Application ...

System One

Mainframe Architect

Pittsburgh, PA · On-site

Testing strategies * Deployment roadmaps * Communicate architecture, schedules, and implementation plans * Coordinate across cross-functional teams Must-Have Technical Skills * Mainframe Application ...

System One

Mainframe Architect

Pittsburgh, PA · On-site

Testing strategies * Deployment roadmaps * Communicate architecture, schedules, and implementation plans * Coordinate across cross-functional teams Must-Have Technical Skills * Mainframe Application ...

Samprasoft

Mainframe

Owings Mills, MD · On-site

$46.75 - $60/hr

Mainframe Developer Contract to hire role (Not open for sponsorship) The project will involve broad ... Conduct code review, unit testing and integration testing. Skills: * This position requires a BA/BS ...

Omni Inclusive

Mainframe

Schaumburg, IL · On-site

$48.25 - $62/hr

... Perform testing and debugging of mainframe programs to ensure accuracy and integrity. 5. Monitor the performance of mainframe systems and optimize as required. 6. Provide technical support and ...

Genome International Corp

Mainframe

East Hartford, CT · On-site

$48.75 - $62.50/hr

Seeking a highly experienced Mainframe Database Migration Specialist to support a critical, time ... Participate in migration testing, system integration testing, user acceptance testing, and ...

Georgia IT Inc

Mainframe QA Tester - 100% Remote

Mainframe QA Tester - 100% Remote Location Columbus, OH Position type 12 Months Contract Rate DOE US citizens and those authorized to work in the U.S are encouraged to apply. We are unable to sponsor ...

Georgia IT Inc

Mainframe Developer

Dallas, TX · On-site

$48.75 - $62.50/hr

Mainframe Developer 100% onsite role (2-3 days onsite so it would be hybrid role) Location ... Requirements Analysis, Design, Coding, Reviews, Unit testing. * Deployments in various regions.

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How much do mainframe tester jobs pay per hour?

As of Jun 28, 2026, the average hourly pay for mainframe tester in the United States is $43.50, according to ZipRecruiter salary data. Most workers in this role earn between $33.41 and $52.40 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive in the Mainframe Tester position, and why are they important?

A Mainframe Tester needs strong analytical abilities, proficiency in mainframe environments (such as IBM z/OS), and knowledge of programming languages like COBOL, JCL, and SQL, often supported by a degree in computer science or a related field. Experience with test automation tools (e.g., IBM Rational, CA tools), debugging utilities, and relevant certifications like ISTQB can be highly beneficial. Excellent problem-solving skills, attention to detail, teamwork, and effective communication help testers excel in cross-functional teams. These skills and qualities are crucial for ensuring reliability, compliance, and performance of mission-critical mainframe systems in large organizations.

What are the typical responsibilities and daily tasks of a Mainframe Tester?

Mainframe Testers are primarily responsible for designing, developing, and executing test cases on mainframe applications to ensure their accuracy and performance. On a daily basis, you might review requirements, create test data, identify defects, and work closely with developers to resolve coding issues. The role often involves collaborating with business analysts and system architects to understand the application's functionality and ensure compliance with business and technical standards. Mainframe Testers frequently use specialized testing tools and may participate in both manual and automated testing cycles. This collaborative and detail-oriented environment helps ensure high-quality and reliable mainframe systems for the organization.

What is a Mainframe Tester job?

A Mainframe Tester is responsible for testing applications running on mainframe systems to ensure their functionality, reliability, and security. They create and execute test cases, validate data processing, and identify defects in mainframe applications. They work with technologies like COBOL, JCL, DB2, and CICS to test batch and online processes. Their role is critical in industries like banking, insurance, and healthcare, where mainframes handle large-scale transaction processing. The tester collaborates with developers and business analysts to ensure the applications meet business requirements.

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Mainframe Tester jobs near you
Senior Security Consultant (Mainframe Penetration Tester)

Senior Security Consultant (Mainframe Penetration Tester)

NetSPI LLC

Minneapolis, MN

Full-time

Posted 17 days ago

Job description

NetSPI® pioneered Penetration Testing as a Service (PTaaS) and leads the industry in modern pentesting. Combining world-class security professionals with AI and automation, NetSPI delivers clarity, speed, and scale across 50+ pentest types, attack surface management, and vulnerability prioritization. The NetSPI platform streamlines workflows and accelerates remediation, enabling our experts to focus on deep dive testing that uncovers vulnerabilities others miss. Trusted by the top 10 U.S. banks and Fortune 500 companies worldwide, NetSPI has been driving security innovation since

NetSPI is on an exciting growth journey as we disrupt and improve the proactive security market. We are looking for individuals with a collaborative, innovative, and customer-first mindset to join our team. Learn more about our award-winning workplace culture and get to know our A-Team at www.netspi.com/careers.

Join the mission as a Senior Security Consultant. We are seeking a skilled and detail-oriented Penetration Tester to conduct thorough security assessments, identify vulnerabilities, and provide expert recommendations to strengthen our clients' security posture. As a Penetration Tester supporting Mainframe testing, you will work closely with clients to deliver clear, actionable reports and contribute to the development of security best practices.

Responsibilities:

  • Perform network, app, platform, CICS, IMS, Db2 and other z/OS-based penetration tests.
  • Create and deliver penetration test reports to clients
  • Collaborate with clients to create remediation strategies that will help improve their security posture
  • Research and develop innovative techniques, tools, and methodologies for penetration testing services
  • Participate in the ongoing development/enhancement of NetSPI services and processes, in addition to thought leadership (via blogs, presentations, white papers, webinars, podcast, vlogs and tweets)
  • Provide pre-sales support by assisting with scoping prospective engagements
  • Act as a resource for internal team members as it relates to in-depth technical questions or best practices
  • Responsible for QA activities in assigned service lines
  • Other duties as assigned

Minimum Requirements:

  • Bachelor’s degree or higher, with a focus on IT, Computer Science, Engineering or Math or equivalent experience
  • 3-5 years of experience in penetration testing, including network, web or thick client application, and operating system testing
  • Experience with offensive toolkits used for network and application penetration testing
  • Strong communication skills, both verbal and written
  • Knowledge of z/OS fundamentals including, but not limited to: TSO, JCL, JES2, USS, Networking and at least one ESM (RACF, ACF2, Top Secret).

Preferred Qualifications:

  • Programming experience in one or more of the following languages: Assembler, C, C++, REXX, Python
  • Experience security or managing z/OS-based systems.
  • Experience with pentesting (PTAS), PTES, OSCP or other offensive security certifications.

We are an equal employment opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status or any other characteristic protected by law.